Laser engraving machine



FIG. 1 is a perspective view of a laser engraving machine showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of portion 9 shown in FIG. 2 ; and,

FIG. 10 is an enlarged view of portion 10 shown in FIG. 2 .

The broken lines in the drawings depict portions of the laser engraving machine that form no part of the claimed design. 

CLAIM The ornamental design for a laser engraving machine, as shown and described. 